Ni70Cr30 High Resistance Alloy
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Introduction:
Nichrome alloy made Ni70Cr30 resistance alloy is characterized with high resistivity, good oxidation resistance, good stability and ductility, good welding performance, high maximum operating temperature of 1250℃ and long service life compared with FeCrAl alloy.
| Style | Specification | ||
| Wire | Diameter: 0.03mm-8mm | ||
| Flat strip | Width: 0.4-40 | Thickness: 0.03-2.9mm | |
| Strip | Width: 8-250mm | Thickness: 0.1-3.0 | |
| Foil | Width: 6-120mm | Thickness: 0.003-0.1 | |
| Rod | Diameter: 8-100mm | Length: 50-1000 | |
Application
Ni70Cr30 resistance alloy applies widely to electric heating element in industrial furnace and it is suitable for reducing atmospheric invasion.
| C | P | S | Mn | Si | Cr | Ni | Al | Fe | Other |
| ≤ | |||||||||
| 0.05 | 0.02 | 0.015 | 0.60 | 0.75~1.60 | 28.0~31.0 | Balance | ≤ 0.50 | ≤ 1.0 | - |
| Yield strength (Mpa) | Tensile strength (Mpa) | Elongation (%) | Density (g/cm3) | Resistivity (20℃) (Ω·mm2/m) | Heat conductivity (20℃) (W/(m·K)) | Average linear expansion coefficient (20℃-1000℃) (1/℃) | Specific heat capacity (20℃) (J/( kg℃)) | Melting point (℃) | Max. operating temperature (℃) | Magnetism |
| 430 | 820 | 30 | 8.2 | 1.18 | 14 | 17x10-6 | 0.46 | 1380 | 1250 | Non |
| 20℃ | 100℃ | 200℃ | 300℃ | 400℃ | 500℃ | 600℃ |
| 1 | 1.007 | 1.016 | 1.028 | 1.038 | 1.044 | 1.036 |
| 700℃ | 800℃ | 900℃ | 1000℃ | 1100℃ | 1200℃ | 1300℃ |
| 1.03 | 1.028 | 1.029 | 1.033 | 1.037 | 1.043 | - |
Index
nickel chromium alloy, resistance wire, alloy strip, NiCr alloy
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